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blsea [12.9K]
3 years ago
15

Find the arithmetic mean an of an-1=3.9 and an+1=7.1

Mathematics
2 answers:
vladimir2022 [97]3 years ago
5 0
A[n] = (a[n-1] +a[n+1])/2 = (3.9 +7.1)/2 = 11/2 = 5.5
labwork [276]3 years ago
3 0

The arithmetic mean is 5.5

So therefor the answer is 5.5

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Answer:

58 degreess

3x+11=4x-5

-3x      -3x

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29

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Step-by-step explanation:

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Which of the following is true?
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3 years ago
What is the slope M of the line passing through the coordinates (2,1) and (-3,5)
Stolb23 [73]

Answer:

the aswer is 4/-5 :)

Step-by-step explanation: (2,1) and (-3,5)

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7 0
3 years ago
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Gelneren [198K]
Logx (8x-3) - logx 4 = 2
logx [(8x-3)/4] = 2
x^2=(8x-3)/4
4x^2=4(8x-3)/4
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4x^2-8x+3=8x-3-8x+3
4x^2-8x+3=0
4(4x^2-8x+3=0)
(4^2)(x^2)-8(4x)+12=0
(4x)^2-8(4x)+12=0
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4(2x-1)(2x-3)=0
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Two options:
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2x/2=1/2
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2) 2x-3=0
2x-3+3=0+3
2x=3
2x/2=3/2
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Answer: Two solutions: x=1/2 and x=3/2
6 0
3 years ago
Help asap
ehidna [41]
Angles A and B are exactly the same because
they are congruent angles

Hope This Helps!!!!!
4 0
3 years ago
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